Convert the Point to Exact Polar Coordinates $\le$ $\theta$ $\le$ 2 $\pi$

Multiple Choice

Convert the point to exact polar coordinates. Assume 0 $\le$$\theta$ $\le$ 2 $\pi$ .

A) (4, 3 $\pi$ /2)
B) (3 $\pi$ /2, 4)
C) (-4, 3 $\pi$ /2)
D) (16, $\pi$ )